The Welsh Government has responsibility for deciding the scope of the competitive market in Wales, and has decided that the competitive retail market will not be expanded in Wales. Only business customer sites using more than 50 megalitres of water per year are eligible to switch Retailer.

If your sites are in the Herefordshire area and you are a Welsh Water customer, the Welsh region regulations apply, even if the sites are based in England. If the sites use more than 50 megalitres of water a year they can switch Retailer. If they do not exceed this threshold, Welsh Water continues to be the Retailer and the Wholesaler.

As Severn Trent is governed by rules that apply in England, business customers who receive water services from Welsh Water and wastewater services from Severn Trent are eligible to switch Retailer for their wastewater, but can only switch Retailer for their water services if they meet the 50 megalitre threshold.